Why does a Transmission slip when its cold?

Type your answer here... Most likely answer is that you have a badly clogged transmission filter. When the fluid is cold it is thick and may not be able to get through the filter, starving, the pump, etc., and causing the trans. to slip, just like it was low on fluid. As the fluid warms up, it gets thinner, and is more able to get through the clogged filter, allowing the trans. to operate "normally". Hopefully a filter/fluid change will do the trick. (should be a little less than $100) Don't delay in getting this done. If you procrastinate you will have a much higher probability of needing a total rebuild/ replacement of your tranny. BIG bucks! )~: ,